Home / 12,590.85-18,886.14-3,825.45

Finding the Fourth Proportional to 12,590.85, 18,886.14 and 3,825.45

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Solution

The fourth proportional to 12,590.85, 18,886.14 and 3,825.45 is: 5,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.85 : 18,886.14 = 3,825.45 : x
  2. Step 2: Convert to fraction form
    12,590.85/18,886.14 = 3,825.45/x
  3. Step 3: Cross multiply
    12,590.85x = 18,886.14 × 3,825.45
  4. Step 4: Simplify right side
    12,590.85x = 72,247,984.26
  5. Step 5: Solve for x
    x = 72,247,984.26/12,590.85
  6. Step 6: Final answer
    x = 5,738.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.